Synthesis and Biophysical Properties of C5-Functionalized LNA (Locked Nucleic Acid)

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Synthesis and Biophysical Properties of C5-Functionalized LNA (Locked Nucleic Acid)

Oligonucleotides modified with conformationally restricted nucleotides such as locked nucleic acid (LNA) monomers are used extensively in molecular biology and medicinal chemistry to modulate gene expression at the RNA level. Major efforts have been devoted to the design of LNA derivatives that induce even higher binding affinity and specificity, greater enzymatic stability, and more desirable ...

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C5-azobenzene-functionalized locked nucleic acid uridine: isomerization properties, hybridization ability, and enzymatic stability.

Oligonucleotides (ONs) modified with a locked nucleic acid (LNA) are widely used in the fields of therapeutics, diagnosis, and nanotechnology. There have been significant efforts towards developing LNA analogues bearing modified bridges to improve their hybridization ability, nuclease resistance, and pharmacokinetic profiles. Moreover, nucleobase modifications of LNA are useful strategies for t...

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Locked nucleic acid (LNA) induced effect on the hybridization and fluorescence properties of oligodeoxyribonucleotides modified with nucleobase-functionalized DNA monomers.

LNA and nucleobase-modified DNA monomers are two types of building blocks that are used extensively in oligonucleotide chemistry. However, there are only very few reports in which these two monomer families are used alongside each other. In the present study we set out to characterize the biophysical properties of oligodeoxyribonucleotides in which C5-modified 2'-deoxyuridine or C8-modified 2'-...

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Synthesis and biological properties of triazole-linked locked nucleic acid.

We have synthesized and studied the biological and biophysical properties of triazole-linked ribo and xylo locked nucleic acid (LNA). The combination of LNA with the Isobe triazole linkage gave high binding affinity when incorporated at the 3' or 5' termini of oligonucleotides, but low binding affinity at internal positions. Antisense oligonucleotides (ASOs) and siRNAs containing triazole dimer...

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NMR solution structures of LNA (locked nucleic acid) modified quadruplexes

We have determined the NMR solution structures of the quadruplexes formed by d(TGLGLT) and d(TL4T), where L denotes LNA (locked nucleic acid) modified G-residues. Both structures are tetrameric, parallel and right-handed and the native global fold of the corresponding DNA quadruplex is retained upon introduction of the LNA nucleotides. However, local structural alterations are observed owing to...

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ژورنال

عنوان ژورنال: The Journal of Organic Chemistry

سال: 2014

ISSN: 0022-3263,1520-6904

DOI: 10.1021/jo500614a